AP BIOLOGY

Detailed explanation-1: -The aquatic animals are called ammonotelic as they excrete ammonia as their waste product. Ammonia excreted by the aquatic animals is in the form of a solid-state not in the gaseous state.

Detailed explanation-2: -Aquatic animals will excrete waste product in the form of ammonia gas which dissolve in water and these organisms are known as ammonotelic animals.

Detailed explanation-3: -Generally, aquatic animals excrete mostly ammonia, whereas terrestrial animals excrete either urea or uric acid. Ammonia, urea and uric acid are transported across cell membranes by different mechanisms corresponding to their different chemical properties in solution.

Detailed explanation-4: -Animals which have ammonia as their primary nitrogenous waste are usually aquatic animals-such as teleost fish.

Detailed explanation-5: -Many aquatic insects produce ammonia as their principal nitrogenous waste material. Ammonia is a toxic substance and must be eliminated in large amounts of water, because the ratio of hydrogen to nitrogen is 3 to 1.